Jack Tripp, CGCS said: Would a used engine driven chipper be a better option? A 10-12" chipper would pay for its self quickly in labor savings and not having to cut trees into smaller pieces. A grapple on your tractor loader bucket would be helpful in taking big wood pieces to the chipper and chip any wood under 8-10" in diameter.
I did a quick goggle search for Vemeer (80hp) 1230 or 1250 chippers and found many for under $10,000. Some with not that many hours.
I own a Vermeer BC 1250a chipper that cost us $16,000 at 2 years old. worth every penny too. we bought it right after Hurricane Katrina blasted our course. it can handle a 12" log or a telephone pole.
If your serious about a chipper I highly recommend getting a complete unit. I also recommend you start planning on what you will do with the chips! I ended up making compost piles out of mine but that left a crap load of material for me to tend to. I had 6 huge piles as high as my backhoe could make them.